NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,041 terms related
to cancer and medicine.

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A drug used to treat infection with HIV (the virus that causes AIDS). It is also being studied in the treatment of some types of cancer. Norvir blocks the ability of HIV to make copies of itself and may block the growth of cancer cells. It is a type of anti-HIV agent and a type of protease inhibitor. Also called ritonavir.